public class Student extends Person implements ISingAble, IFlyAble {
    private int id;
    private int score;

    public void study(){

    }

    @Override
    public void fly() {
        System.out.println("学生正在飞");
    }

    @Override
    public void sing() {
        System.out.println("学生正在唱歌");
    }

    public void run() {
        System.out.println("学生正在跑");
    }
}
